/* ==========================================================================
   FULL-PAGE IMMERSIVE READER STYLES (Minimalist Editorial Design)
   ========================================================================== */

.hidden {
  display: none !important;
}

.fullpage-reader {
  min-height: 100vh;
  background-color: var(--bg-canvas, #FBFBFA);
  color: var(--text-primary, #1A1A1A);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Sticky Reader Top Navigation Bar */
.reader-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 251, 250, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light, #E5E5E0);
  height: 60px;
}

[data-theme="dark"] .reader-topbar {
  background-color: rgba(18, 18, 18, 0.95);
  border-bottom-color: var(--border-light, #2C2C2C);
}

.reader-topbar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.reader-topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.btn-reader-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  color: var(--text-primary, #1A1A1A);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm, 6px);
  cursor: pointer;
  transition: all 180ms ease;
}

.btn-reader-back:hover {
  border-color: var(--border-medium, #D0D0CA);
  background-color: var(--bg-hover, #F5F5F2);
}

.reader-kbd-badge {
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  background: var(--bg-canvas, #FBFBFA);
  border: 1px solid var(--border-light, #E5E5E0);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--text-muted, #737373);
}

.reader-topbar-divider {
  width: 1px;
  height: 18px;
  background-color: var(--border-light, #E5E5E0);
}

.reader-chapter-pill {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary, #525252);
  letter-spacing: 0.02em;
}

.reader-topbar-center {
  flex: 1;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 12px;
}

.reader-topbar-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary, #1A1A1A);
  letter-spacing: -0.01em;
}

.reader-topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.reader-index-pill {
  font-family: var(--font-mono, monospace);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted, #737373);
  background: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  padding: 4px 8px;
  border-radius: var(--radius-sm, 6px);
}

.reader-nav-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  color: var(--text-primary, #1A1A1A);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-sm, 6px);
  cursor: pointer;
  transition: all 180ms ease;
}

.reader-nav-icon-btn:hover:not(:disabled) {
  border-color: var(--border-medium, #D0D0CA);
  background-color: var(--bg-hover, #F5F5F2);
}

.reader-nav-icon-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.reader-nav-icon-btn.copied {
  background-color: #111111 !important;
  color: #FFFFFF !important;
  border-color: #111111 !important;
}

/* Reader Main Content Container */
.reader-container {
  max-width: 880px;
  margin: 0 auto;
  padding: 56px 24px 100px;
  width: 100%;
}

/* Article Header */
.reader-article-header {
  border-bottom: 1px solid var(--border-light, #E5E5E0);
  padding-bottom: 36px;
  margin-bottom: 48px;
}

.reader-kicker-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.reader-ep-badge {
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  background-color: var(--text-primary, #1A1A1A);
  color: var(--bg-canvas, #FBFBFA);
  padding: 3px 8px;
  border-radius: 3px;
}

[data-theme="dark"] .reader-ep-badge {
  background-color: var(--text-primary, #FFFFFF);
  color: var(--bg-canvas, #121212);
}

.reader-chapter-kicker {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary, #525252);
}

.reader-article-title {
  font-family: var(--font-sans);
  font-size: 2.35rem;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary, #1A1A1A);
  margin-bottom: 28px;
}

/* Metrics Bar */
.reader-metrics-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background-color: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  border-radius: var(--radius-md, 8px);
  padding: 16px 20px;
}

.reader-metric-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.reader-metric-label {
  font-size: 0.72rem;
  color: var(--text-muted, #737373);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.reader-metric-val {
  font-family: var(--font-mono, monospace);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary, #1A1A1A);
}

.reader-external-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary, #1A1A1A);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.reader-external-link:hover {
  color: var(--text-secondary, #525252);
}

/* Reader Sections */
.reader-section {
  margin-bottom: 56px;
}

.reader-section-header {
  margin-bottom: 24px;
}

.reader-section-tag {
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted, #737373);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.reader-section-title {
  font-family: var(--font-sans);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-primary, #1A1A1A);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.reader-section-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary, #525252);
  line-height: 1.6;
}

/* Reader Cards */
.reader-card {
  background-color: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  border-radius: var(--radius-md, 8px);
  padding: 24px;
  margin-bottom: 20px;
  transition: border-color 180ms ease;
}

.reader-card:hover {
  border-color: var(--border-medium, #D0D0CA);
}

.reader-card-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary, #525252);
  margin-bottom: 16px;
}

.label-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-primary, #1A1A1A);
}

/* Thesis Card */
.reader-thesis-card {
  background-color: var(--bg-surface, #FFFFFF);
  border-left: 3px solid var(--text-primary, #1A1A1A);
}

.reader-thesis-body {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--text-primary, #1A1A1A);
  font-weight: 500;
}

/* Logic Chain */
.logic-chain-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.logic-chain-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 14px 16px;
  background-color: var(--bg-canvas, #FBFBFA);
  border: 1px solid var(--border-light, #E5E5E0);
  border-radius: var(--radius-sm, 6px);
}

.step-num {
  font-family: var(--font-mono, monospace);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary, #1A1A1A);
  background: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-medium, #D0D0CA);
  padding: 2px 7px;
  border-radius: 3px;
  flex-shrink: 0;
  margin-top: 1px;
}

.step-text {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-primary, #1A1A1A);
  flex: 1;
}


/* Bento Grid: Mental Models & Practical Guide */
.reader-bento-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
  align-items: start; /* 顶部对齐，高度随内部内容自然收拢 */
}

.reader-models-card,
.reader-guide-card {
  height: fit-content !important;
  align-self: start !important;
  margin-bottom: 0 !important;
  padding: 16px 18px !important;
}

.reader-models-card .reader-card-label,
.reader-guide-card .reader-card-label {
  margin-bottom: 12px;
}

/* 核心概念与思维模型卡片内部 */
.models-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.model-item {
  background-color: var(--bg-canvas, #FBFBFA);
  border: 1px solid var(--border-light, #EAEAEA);
  border-radius: var(--radius-sm, 6px);
  padding: 12px 14px;
}

.model-title {
  font-family: var(--font-sans) !important;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary, #111111);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.model-desc {
  font-family: var(--font-sans) !important;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-secondary, #555555);
  margin: 0;
}

/* 实践行动建议：紧致流式单栏列表，边框紧密贴合内容，底部绝不留白 */
.guide-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.practical-guide-single-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.guide-item-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background-color: var(--bg-canvas, #FBFBFA);
  border: 1px solid var(--border-light, #EAEAEA);
  border-radius: var(--radius-sm, 6px);
  padding: 10px 12px;
  transition: background-color 140ms ease;
}

.guide-item-row:hover {
  background-color: var(--bg-subtle, #F7F6F3);
}

.guide-num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background-color: var(--text-primary, #111111);
  color: #FFFFFF;
  font-family: var(--font-mono, monospace);
  font-size: 0.70rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.guide-item-text {
  font-family: var(--font-sans) !important;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-primary, #2F3437);
  margin: 0;
  flex: 1;
}

.guide-empty {
  font-family: var(--font-sans) !important;
  font-size: 0.84rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
  padding: 10px 0;
}


/* Quotes Card */
.reader-quotes-card {
  background-color: var(--bg-surface, #FFFFFF);
}

.quotes-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.golden-quote-box {
  position: relative;
  padding: 18px 22px 18px 24px;
  border-left: 3px solid var(--border-medium, #D0D0CA);
  background-color: var(--bg-canvas, #FBFBFA);
  border-radius: 0 var(--radius-sm, 6px) var(--radius-sm, 6px) 0;
}

.golden-quote-text {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-style: italic;
  line-height: 1.75;
  color: var(--text-primary, #1A1A1A);
  position: relative;
}

/* Transcript Section & Notice */
.reader-cleaner-notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background-color: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  padding: 14px 18px;
  border-radius: var(--radius-sm, 6px);
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-secondary, #525252);
  margin-top: 12px;
}

.notice-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-primary, #1A1A1A);
  background-color: var(--bg-canvas, #FBFBFA);
  border: 1px solid var(--border-medium, #D0D0CA);
  padding: 2px 6px;
  border-radius: 3px;
  white-space: nowrap;
  flex-shrink: 0;
}

.reader-article-body {
  background-color: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  border-radius: var(--radius-md, 8px);
  padding: 44px 52px;
  margin-top: 20px;
}

.transcript-p {
  font-size: 1.06rem;
  line-height: 1.95;
  color: #262626;
  margin-bottom: 24px;
  text-align: justify;
  letter-spacing: 0.015em;
}

[data-theme="dark"] .transcript-p {
  color: #E2E2DF;
}

.transcript-p:last-child {
  margin-bottom: 0;
}

/* Reader Bottom Navigation */
.reader-bottom-nav {
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--border-light, #E5E5E0);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.reader-nav-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.reader-nav-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  background-color: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #E5E5E0);
  border-radius: var(--radius-md, 8px);
  padding: 20px;
  cursor: pointer;
  text-align: left;
  transition: all 180ms ease;
  width: 100%;
}

.reader-nav-card.reader-nav-next {
  align-items: flex-end;
  text-align: right;
}

.reader-nav-card:hover:not(:disabled) {
  border-color: var(--border-medium, #D0D0CA);
  background-color: var(--bg-hover, #F5F5F2);
}

.reader-nav-card:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.nav-direction-label {
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted, #737373);
}

.nav-target-title {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary, #1A1A1A);
  line-height: 1.4;
}

.reader-bottom-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .reader-topbar-center {
    display: none;
  }
  
  .reader-article-title {
    font-size: 1.8rem;
  }
  
  .reader-metrics-bar {
    grid-template-columns: 1fr 1fr;
  }
  
  .reader-bento-grid {
    grid-template-columns: 1fr;
  }
  
  .reader-article-body {
    padding: 24px 20px;
  }
  
  .reader-nav-cards-grid {
    grid-template-columns: 1fr;
  }
  
  .reader-nav-card.reader-nav-next {
    align-items: flex-start;
    text-align: left;
  }
}
/* ==========================================================================
   Section 3: Executive Summary & Core Synthesis (第三部分 · 原文深度总结)
   ========================================================================== */

.reader-summary-section {
  margin-top: 64px;
  padding-top: 56px;
  border-top: 1px solid var(--border-light);
}

.reader-summary-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.02);
}

.reader-summary-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.summary-section-block {
  background-color: var(--bg-subtle, #F8F8F6);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 22px 26px;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.summary-section-block:hover {
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
  transform: translateY(-1px);
}

.summary-block-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.summary-block-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.summary-badge {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  margin: 0;
}

.summary-block-content p {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-primary);
  margin: 0;
  text-align: justify;
}

.summary-empty {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 24px;
  text-align: center;
}

@media (max-width: 768px) {
  .reader-summary-card {
    padding: 24px 20px;
  }
  .summary-section-block {
    padding: 16px 18px;
  }
}


/* Practical Guide - Numbered List (Minimalist UI) */
.practical-guide-numbered-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.guide-numbered-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background-color: var(--bg-canvas, #FBFBFA);
  border: 1px solid var(--border-light, #EAEAEA);
  border-radius: var(--radius-sm, 6px);
  padding: 12px 16px;
  transition: background-color 150ms ease;
}

.guide-numbered-item:hover {
  background-color: #F7F6F3;
}

.guide-num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background-color: var(--text-primary, #111111);
  color: #FFFFFF;
  font-family: var(--font-mono, monospace);
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.guide-text {
  font-family: var(--font-sans);
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--text-primary, #2F3437);
  margin: 0;
  flex: 1;
}

.guide-empty {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
}


/* ==========================================================================
   Section 3: Executive Summary (Minimalist UI Editorial Document Architecture)
   ========================================================================== */

.reader-summary-document {
  background-color: var(--bg-surface, #FFFFFF);
  border: 1px solid var(--border-light, #EAEAEA);
  border-radius: var(--radius-sm, 8px);
  padding: 32px 36px;
  line-height: 1.8;
  color: var(--text-primary, #2F3437);
  box-shadow: none;
}

.summary-doc-lead {
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif);
  font-size: 1.0rem;
  line-height: 1.75;
  color: var(--text-charcoal, #1F2328);
  margin: 0 0 20px 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-light, #EAEAEA);
}

.summary-doc-h2 {
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: #111111;
  margin: 28px 0 12px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light, #EAEAEA);
  letter-spacing: -0.01em;
}

.summary-doc-h2:first-child {
  margin-top: 0;
}

.summary-doc-h3 {
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif);
  font-size: 1.04rem;
  font-weight: 600;
  color: #111111;
  margin: 20px 0 8px 0;
  letter-spacing: -0.01em;
}

.summary-doc-p {
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif);
  font-size: 0.95rem;
  line-height: 1.75;
  color: #2F3437;
  margin: 0 0 14px 0;
  text-align: left;
}

.summary-doc-ul,
.summary-doc-ol {
  margin: 0 0 18px 0;
  padding-left: 22px;
}

.summary-doc-ul li,
.summary-doc-ol li {
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif);
  font-size: 0.92rem;
  line-height: 1.7;
  color: #2F3437;
  margin-bottom: 8px;
}

.summary-doc-ul li::marker {
  color: #888888;
}

.summary-doc-ol li::marker {
  font-family: var(--font-mono, monospace);
  font-weight: 600;
  color: #111111;
}

.summary-doc-quote {
  background-color: var(--bg-canvas, #FBFBFA);
  border-left: 3px solid #111111;
  padding: 12px 16px;
  margin: 16px 0;
  color: #444444;
  font-style: normal;
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif);
  border-radius: 0 4px 4px 0;
}

.reader-summary-document strong {
  color: #111111;
  font-weight: 700;
}

.reader-summary-document code {
  background-color: var(--bg-subtle, #F7F6F3);
  border: 1px solid var(--border-light, #EAEAEA);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
  color: #9F2F2D;
}

@media (max-width: 768px) {
  .reader-summary-document {
    padding: 24px 20px;
  }
}

/* Practical Guide - Single Column Numbered List (Minimalist UI, Requirement 3) */
.practical-guide-single-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.guide-item-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background-color: var(--bg-canvas, #FBFBFA);
  border: 1px solid var(--border-light, #EAEAEA);
  border-radius: var(--radius-sm, 6px);
  padding: 10px 14px;
  transition: background-color 140ms ease;
}

.guide-item-row:hover {
  background-color: var(--bg-subtle, #F7F6F3);
}

.guide-num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background-color: var(--text-primary, #111111);
  color: #FFFFFF;
  font-family: var(--font-mono, monospace);
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.guide-item-text {
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-primary, #2F3437);
  margin: 0;
  flex: 1;
}

.guide-empty {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
}


/* ==========================================================================
   READER PAYWALL & FROSTED GLASS LOCK OVERLAY
   ========================================================================== */

.reader-auth-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 11px;
  background-color: var(--bg-canvas, #FFFFFF);
  border: 1px solid var(--border-light, #E2E2DE);
  border-radius: var(--radius-sm, 6px);
  font-family: var(--font-sans, sans-serif);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary, #111111);
  cursor: pointer;
  transition: all 120ms ease;
  white-space: nowrap;
}

.reader-auth-badge-btn:hover {
  background-color: var(--bg-subtle, #F7F6F3);
}

.reader-auth-badge-btn.is-vip {
  background-color: #F0FDF4;
  border-color: #BBF7D0;
  color: #166534;
}

.auth-dot-sm {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #D97706;
}

.reader-auth-badge-btn.is-vip .auth-dot-sm {
  background-color: #16A34A;
}

/* Paywall Lock Zone */
.reader-blur-zone {
  filter: blur(6px);
  opacity: 0.22;
  user-select: none;
  pointer-events: none;
  max-height: 480px;
  overflow: hidden;
  transition: all 200ms ease;
}

.reader-paywall-curtain {
  position: relative;
  margin: -240px auto 40px auto;
  z-index: 20;
  max-width: 660px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid #E2E2DE;
  border-radius: 12px;
  padding: 36px 32px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.paywall-tag {
  display: inline-block;
  padding: 3px 8px;
  background-color: #FEF3C7;
  color: #92400E;
  border: 1px solid #FDE68A;
  border-radius: 4px;
  font-family: var(--font-mono, monospace);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.paywall-title {
  font-family: var(--font-serif, "Newsreader", serif);
  font-size: 1.45rem;
  font-weight: 600;
  color: #111111;
  margin: 0 0 10px 0;
  line-height: 1.35;
}

.paywall-desc {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.9rem;
  line-height: 1.6;
  color: #555555;
  margin: 0 auto 22px auto;
  max-width: 540px;
}

.paywall-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 14px;
}

.btn-paywall-primary {
  height: 40px;
  padding: 0 20px;
  background-color: #111111;
  color: #FFFFFF;
  border: 1px solid #111111;
  border-radius: 6px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 120ms ease;
}

.btn-paywall-primary:hover {
  opacity: 0.88;
}

.btn-paywall-secondary {
  height: 40px;
  padding: 0 18px;
  background-color: #FFFFFF;
  color: #111111;
  border: 1px solid #D1D1CB;
  border-radius: 6px;
  font-size: 0.86rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 120ms ease;
}

.btn-paywall-secondary:hover {
  background-color: #F7F6F3;
}

.paywall-footer-note {
  font-family: var(--font-mono, monospace);
  font-size: 0.74rem;
  color: #888888;
}

.logic-chain-locked-pill {
  padding: 10px 14px;
  margin-top: 8px;
  background-color: #FAFAF8;
  border: 1px dashed #D5D5CF;
  border-radius: 6px;
  font-size: 0.82rem;
  color: #777777;
  text-align: center;
}